Sheet-metal-bending roll



Marc hll 1924. 1,486,150

C. F. LANOUETTE I SHEET METAL BENDING ROLL Filed April 19 1923 3 Sheets-Sheet 1 m I :1 0 'lili lll I I I I March 11 1924.

C. F. LANOUETTE SHEET METAL BENDING ROLL I Filed April 19, 192 15 3 Sheets-Sheet 2.

QLMWEW March 11 1924. 1,486,150

I c. F. LANOUETTE SHVEET METAL BENDING ROLL Filed April 19. 1925 s Sheets-Sheet 3 (9 j 1/ g J4 6 4 fl I'll" If 1 mmm Z Iwuzntoz I Fatented Mar. 11, 1924.

UNETED TATES CHARLES F. LANOUETTE, OF ST. ALBANS, VERMONT, ASSIGNOR T FOUNDRY MANU- FACTURING CO. INC., OF ST. ALBANS VERTEONT, A CORPORATION OF VERMONT.

SHEET-METAL-BENDING- ROLL.

Application filed April 19, 1923. Serial No. 633,231.

To all whom it may concern.

Be it known that 1, CHARLES Fe LANGU- ETTE, a citizen of the United States, residing at St. Albans, in the county of Franklin,

State of Vermont, have invented certain new and useful Improvements in Sheet- Metal-Bending Rolls, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to sheet metal bending rolls of the class wherein the top roll is releasably locked at one end, so that it may be lifted for removal or insertion of the work.

The object of the invention is to provide a simple and effective manually-operated means for locking and releasing one end of the top roll or mandrel, and means operatively connecting this locking and releasing means with the opposite end of the said roll to cause'its free end to be lifted or lowered by the movements of said locking and releasing means.

This object I accomplish by the construction shown in the accompanying drawings,

in which v Figure 1 is a front elevation of the machine partly in section;

Fig. 2 is an elevation of the right hand end of the machine;

Fig. 3 is a similar view of the left hand end of the machine; and

Fig. 4 is a detail sectional view of the rotatable locking device.

allel standards 17-18 rigidly connected by longitudinal bars or bolts l6-16. Drive roll 10 and idler roll 11 are mounted in adjustable bearing boxes 12-12 which are adjustable towards the upper or lifting roll 8 by means of the set-screws 1313, the two sets of boxes 12 being at an angle to each other as shown in Figs. 2 and 3. The right hand end of the drive roll journal carries the operating means shown as a crank 14: provided with a handle 15, though any other suitable operating device may be employed in lieu of the crank.

The right hand end of the tilting roll 8 is journaled in a half bearing 8', while its left hand end is journaled in a pivoted bearing 9 pivotally held between two set screws 9-9. The journal at the left end of roll 8 is extended and provided with a pair of pinions ES -8 the teeth of one being out of line with The frame of the machine comprises parthe teeth of the other. These pinions mesh with a pair of similarly arranged pinions 10 1O on roll 10, so that the roll 8 will be positively driven from the roll 10.

The other half bearing 3 for the right hand end of roll 8 is formed in the lower side of a locking cap 8 pivoted at 3 to the upper rear corner of standard 17. This looking cap 3 is swung upwardly and forwardly by means of a locking device which secures the cap to the standard 17. This locking device comprises a rotary locking stud 1 j ournaled in the outer free end of the cap 3 and provided at its lower end with a transverse head 1 adapted to pass down through a slot 25 in the upper face of standard 17 and, when, rotated, enter an undercut recess 26 and lie across the slot 25. The locking stud 1 and its head 1 are rotated by means of a laterally projecting handle 2. The effective movement of the handle 2 is limited by a stop lug 2 to the left of stud 1 and integral with the upper side of cap 3.

The forward and downward swinging movement of the locking cap 3 is caused to depress the left hand end of the tilting roll 8 by means of a rock shaft 5 journaled in the uprights or stands 1718 below roll 11, and the right hand end of this shaft 5 is provided with a forwardly and upwardly curved crank arm or cam l provided with a lateral finger 4 lying in the downward path of the upper curved edge of the locking cap 3 so that, as the said cap is swung downwardly and outwardly, it will strike the finger 4 and depress its arm 4: from the position shown in full lines, Fig. 2, to the position shown in dotted lines, at which time the finger 4; will enter a notch 3" in the curved'edge of the cap and so the parts will be locked in this position. This depressing of crank arm 4 will have correspondingly rocked shaft 5 and caused a shorter crank 6, on its left hand end, tomove downwardly and exert a pull upon the lower end of a link 7 pivoted to its outer end and this link 7 is apertured at its upper end and receives the grooved portion 7 of the extended end of the lifting roll 8 and so this end of the roll is depressed and the opposite end lifted.

The actual rolling of the material is effected in the same manner as with other rolls of this type. After the material is rolled and ready to be removed, the operator gives the handle 2 a half turn to the left until ator will now lift handle 2 and soswing the locking cap upwardly and forwardly; the head of the locking stud now passing up through the slot 25. Then the locking.

cap 3 and its attached parts reach a vertical position, as shown in dotted lines in Fig. 2, the curved edge of the cap Wlll engage the finger 4: of crank arm or cam 4C.

As the movement is continued to the horizontal position shown in dotted lines in Fig. 2, the arm or crank 4 is forced down, thus turning the shaft 5 and depressing its opposite shorter crank arm 6, which in turn exerts a downward pull on link 7. As the link 7 is pulled down, it pulls down on the left end of the tilting roll 8 which then swings up by reason of its pivoted bearing box 9 and so the opposite end of roll 8 is lifted for the removal of the finished work. When the cap 3 reaches the horizontal position shown in dotted lines, Fig. 2, the finger 4; on crank arm 4 slides into the notch 3 in cap 3 which automatically locks the lifting mechanism and holds the tilting roll in a rigid open position.

All of these movements are effected by one continuous movement of the operators arm.

After removing the formed material from roll 8, the operator will grasp the handle 2 and lift the cap 3 to the vertical position which allows 'the roll 8 to fall into place and this movement of the roll will exert an upward pull on link 7 and rock the shaft 5 and so bring the arm 4: to its original position. The operator will continue the movement of cap 3 rearwardly to the position shown in full lines, Fig. 2,

V whereupon the head 1 of the locking stud will pass through the slot 25, when a half turn on handle 2 will lock the head in recess 26.

The above construction enables the operator to unlock, open and remove material from the rolls and close and lock the rolls with but two distinct movements of one arm and yet not move from his original position at the right hand end of the rolls. Where heavy rolls are'employed, the tilt ing roll may be counterbalanced by a weight or spring in order that it may be more readily tilted by the operator.

\Vhat I claim is:

1. In sheet metal bending rolls, the combination with a frame, a tilting roll having a rocking bearing at one end, half bearings at the opposite or lifting end, and a vertically and forwardly swinging locking cap having one of said half bearings for said lifting end, and means for locking the cap in place, of a rock shaft journalled in the ends of the frame below the rolls, and provided at one end with a forwardly projecting crank arm or cam in the downward path of the swinging cap and provided at its opposite end with a cranklinked to the pivotal end of the lifting roll whereby the forward and downward swing of the cap will lift that end of the roll.

2. In sheet metal bending rolls, the combination with a frame, a tilting roll having a rockiii-ghearing at one end, half bearings at the opposite or lifting end, a vertically and forwardly swinging locking cap havin one of said half bearings for said lifting end and provided with an upper notched curved edge. and means for locking the cap in place, of a rock shaft journalled in the ends of the frame and provided at one end with a crank arm having a lateral extension extending into the downwardly path of the curved notched edge of the locking cap, a. crank on the opposite end of the rock shaft and a link connecting said crank with the pivotal end of the tilting roll.

3. In sheet metal bending rolls, the combination with a frame having a pivotal hearing at one end and a half bearing and slotted locking recess at its opposite end, a tilting roll journalled in said pivotal hearing and half bearing, a vertically and forwardly swinging locking cap having a half bearing for the roll registering with the half bearing in the frame, a rotary locking stud provided with a laterally projecting handle for operating both the stud and the locking cap, said stud having a transverse locking head to engage the locking recess, a crank shaft journalled in the end of the frame and provided at one end with a crank arm extending into the outward path of the locking cap for depression thereby and having a crank at its opposite end and a link connecting the latter crank with the pivotal end of the tilting roll.

At. In sheet metal bending rolls, the combination with the frame and the tilting roll having a half bearing at one end in the frame, of a vertically swinging locking cap having a mating half bearing for that end of the roll, a vertically disposed rotating locking gagement by said transverse locking head.

In testimony whereof, I affix my signature,

CHARLES F. LANOUETTE. 

